java.util.Iterator<E>
, ResettableIterator<E>
public class EmptyIterator<E> extends java.lang.Object implements ResettableIterator<E>
This class provides an implementation of an empty iterator.
This class provides for binary compatibility between Commons Collections
2.1.1 and 3.1 due to issues with IteratorUtils
.
Modifier and Type | Field | Description |
---|---|---|
static java.util.Iterator |
INSTANCE |
Singleton instance of the iterator.
|
static ResettableIterator |
RESETTABLE_INSTANCE |
Singleton instance of the iterator.
|
Modifier | Constructor | Description |
---|---|---|
protected |
EmptyIterator() |
Constructor.
|
Modifier and Type | Method | Description |
---|---|---|
void |
add(E obj) |
|
static <E> java.util.Iterator<E> |
emptyIterator() |
Get a typed empty iterator instance.
|
boolean |
hasNext() |
|
boolean |
hasPrevious() |
|
E |
next() |
|
int |
nextIndex() |
|
E |
previous() |
|
int |
previousIndex() |
|
void |
remove() |
|
void |
reset() |
|
static <E> ResettableIterator<E> |
resettableEmptyIterator() |
Get a typed resettable empty iterator instance.
|
void |
set(E obj) |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
reset
public static final ResettableIterator RESETTABLE_INSTANCE
public static final java.util.Iterator INSTANCE
public static <E> ResettableIterator<E> resettableEmptyIterator()
E
- the element typepublic static <E> java.util.Iterator<E> emptyIterator()
E
- the element typepublic boolean hasNext()
public E next()
public boolean hasPrevious()
public E previous()
public int nextIndex()
public int previousIndex()
public void add(E obj)
public void set(E obj)
public void remove()
public void reset()
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